IHI VF Turbos Info - Page 3 - Subaru WRX Forum
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#31 Old 02-18-2007, 02:59 PM
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is there a reason that the VF-23 is called the secret weapon?
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#32 Old 02-18-2007, 04:05 PM
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Quote:
Originally Posted by dumdum View Post
Only the VF36,VF37,VF38 and VF42 are twin scrolls.The VF23 is not,but it is a roller bearing turbo. The VF23 uses the same P20 turbine housing that the VF22 uses,which is not a twin scroll design.
So really they are just a newer version of the vf22?
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#33 Old 02-18-2007, 04:12 PM
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The fact that they are a roller bearing design with a compressor bigger than the VF30/VF34 and spool up faster than a VF22 and probably a VF30 makes it a pretty potent turbo.I like the VF24 as well.

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#34 Old 02-18-2007, 04:14 PM
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Which turbo are you running DUMDUM?
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#35 Old 02-18-2007, 04:25 PM
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Ported and polished stocker right now.Needed to make some dough so the bigger turbo had to go!

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#36 Old 02-18-2007, 05:55 PM
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Also three more VF series turbos not one the original list:

IHI VF43
(250-325whp, Bolt-On)
This is the standard equipment turbocharger used on the MY07 USDM Subaru Impreza WRX STI. It can be found on both base STI's and STI Limited's. The VF43 utilizes a thrust bearing design and the P15 exhaust housing. The difference between the VF43 and the VF39 used previously on STI's is the size of the wastegate. The VF43 has a larger wastegate designed to reduce boost creep issues.
Expect to achieve full boost with the proper mods and a quality tune between 3000-3500rpms

IHI VF40
This is the standard equipment turbocharger used on the USDM Subaru Legacy GT. It can be found on all the current model years from 2005-2007.


IHI VF41
This is the standard equipment turbocharger used on the JDM Subaru Forester STI. It utilizes a P18 exhaust housing.

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#37 Old 02-18-2007, 07:04 PM
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This guy's apparently selling a vf48...??? http://www.thepartstrader.com/forum/...24510#msg24510
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#38 Old 02-19-2007, 06:47 AM
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Apparently its an old turbo that used to come on some of the 1.8L turbocharged Subaru's (GL10).Its also known as a VJ11.Very tiny!I actually have one in my garage that i was porting!

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#39 Old 03-16-2008, 11:09 AM
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I just put a VF22 on my 03 and i love it, it does take a little longer to spool up but its worth it in the long run i think. great info on the turbos by the way!!!!
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#40 Old 03-16-2008, 05:59 PM
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Quote:
Originally Posted by WReXd View Post
This guy's apparently selling a vf48...??? http://www.thepartstrader.com/forum/...24510#msg24510
Now there is a "new" VF48.Comes on the 2008 STi's.Basicly the same thing as a VF43 but uses a new 5 arc compressor design.

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#41 Old 04-13-2008, 11:21 PM
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Does anyone know what size injectors to use with a TD05H-Big 16G Turbocharger? What about fuel pump size too?

Tom
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RIP baby....Here I come STi.
Stupid deer.
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#42 Old 04-14-2008, 12:08 AM
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I would say get some 650cc injectors. Also a warlbo 255lph fuel pump will work. Has anyone over here ever heard of the IHI VF48 turbo. I have been reading over on nasioc and it comes on the 08 STi's. It has comparable numbers to an 18G.
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#43 Old 04-14-2008, 12:53 AM
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thanks man

Another question. Would a big 16g run well with a TMIC? Not the stocker, but an aftermarket bigger TMIC.

Tom
'05 WRX Wagon (RIP)
Cobb AP Stg 2


RIP baby....Here I come STi.
Stupid deer.

Last edited by mosc; 04-23-2008 at 12:26 PM.
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#44 Old 04-14-2008, 01:08 AM
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I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post! I will not double post!

Tom
'05 WRX Wagon (RIP)
Cobb AP Stg 2


RIP baby....Here I come STi.
Stupid deer.

Last edited by mosc; 04-23-2008 at 12:26 PM.
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#45 Old 04-14-2008, 02:42 AM
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Oh ya, your still able to cool the air charge...
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